3551238463740 has 192 divisors, whose sum is σ = 11512929738240. Its totient is φ = 808329871360.

The previous prime is 3551238463691. The next prime is 3551238463807. The reversal of 3551238463740 is 473648321553.

It is a happy number.

It is a super-2 number, since 2×3551238463740² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4323484 + ... + 5078876.

It is an arithmetic number, because the mean of its divisors is an integer number (59963175720).

Almost surely, 2^{3551238463740} is an apocalyptic number.

3551238463740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3551238463740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5756464869120).

3551238463740 is an abundant number, since it is smaller than the sum of its proper divisors (7961691274500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3551238463740 is a wasteful number, since it uses less digits than its factorization.

3551238463740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755852 (or 755850 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 3551238463740 in words is "three trillion, five hundred fifty-one billion, two hundred thirty-eight million, four hundred sixty-three thousand, seven hundred forty".